Kurdish fighters seized control Tuesday of a key border town from the Islamic State group, cutting a major supply line in the biggest setback yet for the jihadists in Syria.

From across the frontier in Turkey, the Kurds and allied Syrian rebels could be seen raising their banners in place of the black IS flag and taking up positions at the Tal Abyad border post.

The Philippines' largest rebel group retired nearly 150 guerrillas and handed over 75 firearms for decommissioning Tuesday to encourage parliament to pass a proposed law giving minority Muslims self-rule.

President Benigno Aquino visited the headquarters of the Moro Islamic Liberation Front (MILF) to witness the weapons handover, the first concrete action by the organisation to abandon a decades-old rebellion that has claimed more than 100,000 lives.

Social Affairs Minister Rashid Derbas has called for joint Lebanese-Jordanian action to establish safe areas in Syria to help the refugees return to their country.

“There is a need for joint Lebanese-Jordanian work to ask for safe areas in Syria,” Derbas told An Nahar daily published on Tuesday.

Kurdish forces seized nearly full control of the Syrian town of Tal Abyad on Monday, fighting only pockets of jihadists on a vital supply line for the Islamic State group.

The Kurdish People's Protection Units (YPG) advanced into Tal Abyad after taking a border post and cutting off the road south to the de facto IS capital of Raqa, a monitoring group said.

Turkey's opposition parties that garnered most of the vote in the June 7 legislative polls should form a coalition government, the leader of the second-placed Republican People's Party (CHP) said on Monday.

"The duty to form a coalition government falls on the bloc of 60 percent," Kemal Kilicdaroglu told a news conference in Ankara, referring to the third-placed Nationalist Movement Party (MHP) and fourth-placed pro-Kurdish Peoples' Democratic Party (HDP).

Rights group Amnesty International on Monday slammed world leaders for "condemning millions of refugees to an unbearable existence" and demanded they work closely to resolve the "worst crisis" since World War II.

"From the Andaman to the Mediterranean people are losing their lives as they desperately seek safe haven," said Salil Shetty, Amnesty's secretary general, as the group published a report ahead of World Refugee Day on June 20.

Progressive Socialist Party leader MP Walid Jumblat does not intend to host Syria's Druze in areas where the sect is concentrated in Lebanon, sources said, as a PSP delegation visited Turkey to contain the repercussions of the killing of at least 20 Druze in the neighboring country.

Sources close to Jumblat denied to the Kuwaiti al-Anbaa daily published on Monday reports that the PSP chief would host Druze from Syria in Lebanon's Shouf district to guarantee their safety.

Kurdish forces advanced Sunday to the gates of a Syrian town and clashed with Islamic State jihadists, an upsurge in violence that saw Turkey open its border to fleeing civilians.

Backed by Syrian rebel fighters and U.S.-led air strikes, the Kurdish militia pressed their offensive on the northern town of Tal Abyad, a strategic supply route from Turkey to IS' self-proclaimed capital of Raqa.

The death toll from an attack on a rally of Turkey's pro-Kurdish People's Democratic Party (HDP) rose to four on Saturday, when a 65-year-old died from his wounds, the Dogan news agency said.

The June 5 attack on an HDP pre-election rally in the southeastern city of Diyarbakir, caused by a bomb stuffed with ball bearings, came two days ahead of the June 7 legislative elections in which the party scored a major breakthrough.

Russian President Vladimir Putin on Saturday met Turkish counterpart Recep Tayyip Erdogan for talks expected to touch on energy issues and the Syria crisis.

The two leaders met a day after attending the opening ceremony of the inaugural European Games, hosted by Azerbaijan and tainted by controversy over the ex-Soviet country's rights record.